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57 l/min Open Centre tests
B . High flow rate circuit
Safety valve test
- Connect
a
pressure
ref. 3582045M1 to the diagnostics connector (1)
(Fig.
1).
This diagnostics connector is located:
- either on the trailer braking valve (if fitted);
- or on the closing plate (2) fitted to the right-hand
hydraulic cover.
- Run the engine at 2200 rpm.
- Activate an auxiliary spool valve to open the valve.
- Check P1 = 195 ± 5 bar.
If pressure P1 is not correct, adjust the safety valve
using shim(s) (see chapter 9).
- At 1000 rpm, the pressure should not drop.
09K01.4
gauge
with
a
coupler
Massey Ferguson 5400 - Issue 1.a
Fig. 1
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